Pump.



R. CONRADER.

PUMP.

nrucmon mso 1.30. m4.

Puwnted Apr. 4, 1916.

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RUDOLPH CONRADER, OF ERIE, YENNSYLVANIA.

PUMP.

Specitioation of Letters Patent.

Patented Apr. 4, 1916.

Application tiled March 80, 1814. Serial No. 828.145.

To all whomy it muy Concern Be it known that l, RUooLrn Coxaanna, a citizen of the United States, residing at llrie, in the county ot` llrie and'State of Pennsylvania, have invented new and useful Improvements in Pumps, of which the following is a specification.

This invention relates to pumps` and consists in certain improvements 1n the con struction thereof as will he hereinafter fullyl described and pointed out in the claims.

The object of the invention is to provide such a pump ordinarilv used in deep wells such as oil wells witi a standing valve which is ti 1rht under normal conditions but which may e readily pulled when desired.

The invention is illustrated in the accompanying drawings as follows:

Figure 1 shows a central section of the ump. Fig. 9 a section on the line 2--2 in dg. 1. Fig. 8 a section on the line 8--3 in Fig. 1. Fig. 4 a section on the line 4-1 in Fig. 1. Fig. 5 a section on the line 5-5 in Fig. 1.

1 marks the working barrel, 9. the coupling at the bottom of the working barrel, and 3 the strainer tube which is secured to the seat couplin 2. The coupling 2 has a seat for the standing valve. This seat is beveled and this is of common construction. The standing valve sent is beveled to correspond to the bevel of the seat 4. A hexagon 6 extends below the seat 5 and the screw thread 7 is provided in the hexagon.

As ordinarily constructed standing valves are arranged in the manner so far described with the seat 5 and the couplinff 4, but the seat 5 has portions of it common y flattened forming a wrench hold for assembling the parts of the standing valve. This reduces the contact surfaces so that leakage is not. always prevented. With this device the wrench hold is arranged below the seat so that there is a full contact surface of the seat.

A standing valve tube 8 is screwed into the seat piece 5. It has a shoulder 9 on its upper end. An upwardly extending cup is arranged below this shoulder and flexible rings 11 and 12, ordinarily formed of leather are arranged below the cup 10. A distance piece 13 is arranged below the ring 19 and a cup 14 is arranged below the distance piece 13. The seat piece has the extension 5l which forms a seat for the lower cup, the seat piece being concave so as to fully support the cup` Il v forming the rings` ll and l2 oll slightly 'renter diameter normally than the working llarrel they are heut u i slightly at the edges when the standing vulve is forced to place, the turn ol` the cup 1t) permittingr this upturning of the edge of the ring. This forms` a gripping surface which prevents the upward movennnt ol` the standing valve under the normal pumping action of the pump, yet. the rings are ol such size as to readily permit of the reversing of the turn when sullicient pressure is put on the standing valve to pull it.

It will be noted that the extension o earries the lower cup .1.1 above the bottom edge of the pump barrel. In ordinarv practice. the bottom of the pump barre was not screwed down to the seat 4 of the couplingr 2 so that there is a small space left below' the end of the barrel and where rings` are used for packing the standing valve they swell into this space and are stripped when the standing valve is lifted. The upper end of the sleeve 8 has a screw threaded portion 15 on which the cage 16 is screwed, the standing valve seat being secured by the cage.

18 marks the ball of the standing valve, 19 the pump plunger and 20 the hall check of the plunger.

The plunger is provided with the cups '.22 which are clamped in position by the plunger end 21. The plunger end has the lips .23 with the perforation 21. A screw 25 cxtends through the perforation. It is provided with the head E2G. '1`he extension 27 extends through the bar "2S in the plunger end `2l. spring 29 yieldingly forces the screw to its downward position. 'l`he scrcw is adapted to enter the screw threaded portion in the upper end of the cage lli.

lVhen it is desired to lift the standing valve, the plunger is lowered bringing the screw 25 into position to enter the screw threaded perforation 30. By turning the plunger, the screw Q5 is screwed into the perforation thus connecting the standing valve with the plunger. The jar in lifting the plnngm` will readily release the washers 11 and 12 so that there will he no tendency to strip any parts of the standing valve as it is being lifted. At the saine time, the washeis 11 and l2 prevent the displacement of the standing valve under pressure due to the pulsations of the pump.

I do not claim in this application the specie structure of plunger herein shown and described and this forms the subject matter of a Separate application filed on even date with this application #$25,144.

\Vhat I claim as new isz- 1. In a pump` the combination of a bariel; a seat coupling on the barrel; a standing valve; a cup on the standing valve forming a. joint with the barrel; and a flexible washer forming a joint between the standing valve and the barrel, said washer being larger than the bore of the barrel but reversible on the pulling of the standing valve.

'2. In a pump. the combination of a barrel; a seat coupling on the barrel; a standing valve; a cup on the standing valve; and a plurality of flexible washers forming a joint with the barrel. said washers being larger than the bore of the barrel but reversible on the pulling ofthe standing valve.

8. In a pump, the combination of a barrel; a seat coupling on the barrel; a standing valve; a cu i on the standing valve forming a joint with the barrel; and a washer arranged below the cup and constructed to lock the standing valve in place in the barrel.

1. In a pump, the combination of a barrel; a seat coupling on the barrel; a standing valve; a. cup on the standing valve forming Copies u! a joint with the barrel; and a flexible washer constructed to lock the standing valve with the barrel when subjected to normal pressure.

5. In a pump, the combination of a barrel; a seat coupling on the barrel; a standing valve; a cup forming a ljoint between the standing valve and the barrel; a llexible washer arranged below the cup and constructed to lock the standing valve in the barrel; a. distance piece below the washer; a cup below the distance piece; and a seat piece clamping the cups and washer on the standing valve.

6. In a pump. the combination of a barrel; a seat coupling on the barrel; a standing valve; a cup forming a joint between the standing valve and the barrel; a flexible washer arranged below the cup and constructed to lock the standing valve in the barrel; a distance piece below the washer; a cup below the distance piece; and a seat piece clamping the cups and washer on the standing valve., said seat piece having an extension carrying the bottom of the lowest cup above the. bottom of the barrel.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

RUDOLPH CONRADER.

Witnesses:

B. M. HARTMAN, THOMAS C. MILLER.

this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Wulllington, D. C. 

